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Auto merge of #7611 - nox:cache-element-id, r=frewsxcv

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Cache the `id` attribute on Element

Thanks to @asabil for the original work, I only rebased it.

Fixes #6359 and #7040.


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This commit is contained in:
bors-servo 2015-09-20 09:23:20 -06:00
commit d1269294e6
6 changed files with 43 additions and 536 deletions
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28
components/script/dom/node.rs
View file

@ -811,18 +811,17 @@ impl Node {
Err(()) => Err(Syntax),
// Step 3.
Ok(ref selectors) => {
let root = self.ancestors().last();
let root = root.r().unwrap_or(self.clone());
Ok(root.traverse_preorder().filter_map(ElementCast::to_root).find(|element| {
Ok(self.traverse_preorder().filter_map(ElementCast::to_root).find(|element| {
matches(selectors, element, None)
}))
}
}
}
/// https://dom.spec.whatwg.org/#scope-match-a-selectors-string
/// Get an iterator over all nodes which match a set of selectors
/// Be careful not to do anything which may manipulate the DOM tree whilst iterating, otherwise
/// the iterator may be invalidated
/// Be careful not to do anything which may manipulate the DOM tree
/// whilst iterating, otherwise the iterator may be invalidated.
#[allow(unsafe_code)]
pub unsafe fn query_selector_iter(&self, selectors: DOMString)
-> Fallible<QuerySelectorIterator> {
@ -832,9 +831,7 @@ impl Node {
Err(()) => Err(Syntax),
// Step 3.
Ok(selectors) => {
let root = self.ancestors().last();
let root = root.r().unwrap_or(self);
Ok(QuerySelectorIterator::new(root.traverse_preorder(), selectors))
Ok(QuerySelectorIterator::new(self.traverse_preorder(), selectors))
}
}
}
@ -1767,15 +1764,12 @@ impl Node {
let node_elem = ElementCast::to_ref(node).unwrap();
let copy_elem = ElementCast::to_ref(copy.r()).unwrap();
let window = document.r().window();
for ref attr in &*node_elem.attrs() {
let attr = attr.root();
let newattr =
Attr::new(window.r(),
attr.r().local_name().clone(), attr.r().value().clone(),
attr.r().name().clone(), attr.r().namespace().clone(),
attr.r().prefix().clone(), Some(copy_elem));
copy_elem.attrs_mut().push(JS::from_rooted(&newattr));
for attr in node_elem.attrs().iter().map(JS::root) {
copy_elem.push_new_attribute(attr.local_name().clone(),
attr.value().clone(),
attr.name().clone(),
attr.namespace().clone(),
attr.prefix().clone());
}
},
_ => ()